Two Japan Reactors Gain Safety Clearance

Attention Moves to Who Will Make Final Restart Decision

TOKYO—Japan's nuclear watchdog gave safety clearance on Wednesday for the restarting of two nuclear reactors in Kagoshima prefecture, southern Japan, recognizing their compliance with stricter regulations created after the Fukushima nuclear accident.

While the decision marks progress in Japan's efforts to get some of its 48 reactors generating power again, the operator of the two units and policy makers who have been pushing to bring nuclear power back online aren't celebrating yet. That is because it still remains...